Table 2.

Bioassays

Age	Hormone	n	Body weight	Prostate	Seminal vesicles	Total testosterone
Young	GDX	13	325.25 ± 7.75	0.16 ± 0.08#	0.40 ± 0.18#	0.36 ± 0.63#
Young	Intact	13	325.35 ± 27.75	0.46 ± 0.13	0.83 ± 0.19	5.61 ± 2.90
Middle-aged	GDX	12	444.75 ± 26.48*	0.30 ± 0.11*#	0.89 ± 0.20*#	0.21 ± 0.18#
Middle-aged	Intact	11	456.68 ± 43.96*	0.75 ± 0.25*	1.27 ± 0.39*	4.34 ± 3.42

Young rats are 3 mo old; middle-aged rats are 9–12 mo old. Weights are expressed as mean g ± SEM. Plasma testosterone levels are expressed as mean ng/ml ± SEM. GDX, gonadectomy; intact, gonadally intact. P < 0.05: *versus young; ^#versus intact.